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All results from a given calculation for CH3OO (methylperoxy radical)

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A"
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-188.471506
Energy at 298.15K-188.475176
HF Energy-188.169560
Nuclear repulsion energy72.090268
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CISD/3-21G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3218 3029 11.92      
2 A' 3127 2944 13.08      
3 A' 1608 1514 7.67      
4 A' 1520 1430 0.95      
5 A' 1266 1191 41.78      
6 A' 1202 1132 3.12      
7 A' 935 880 14.78      
8 A' 459 432 4.28      
9 A" 3208 3020 23.99      
10 A" 1589 1496 5.73      
11 A" 1176 1107 0.32      
12 A" 167 157 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 9736.8 cm-1
Scaled (by 0.9413) Zero Point Vibrational Energy (zpe) 9165.3 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CISD/3-21G
ABC
1.52534 0.36105 0.30926

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.038 -0.445 0.000
O2 0.000 0.618 0.000
O3 -1.262 -0.032 0.000
H4 1.985 0.092 0.000
H5 0.939 -1.057 0.896
H6 0.939 -1.057 -0.896

Atom - Atom Distances (Å)
  C1 O2 O3 H4 H5 H6
C11.48622.33651.08891.08901.0890
O21.48621.41922.05352.11922.1192
O32.33651.41923.24892.58782.5878
H41.08892.05353.24891.79341.7934
H51.08902.11922.58781.79341.7910
H61.08902.11922.58781.79341.7910

picture of methylperoxy radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 O2 O3 107.040 O2 C1 H4 104.725
O2 C1 H5 109.800 O2 C1 H6 109.800
H4 C1 H5 110.865 H4 C1 H6 110.865
H5 C1 H6 110.630
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability